4.80/4.00-8" Inner Tubes with TR-13 Straight Valve Stem Replacement for Lawn Mower,Yard Tractors,Wheelbarrows,ATVs and More (4.80/4.00-8)

What It Is

This is a replacement 4.80/4.00-8" inner tube with a TR-13 straight valve stem, designed to fit pneumatic tires on lawn mowers, yard tractors, wheelbarrows, ATVs, and small utility trailers. It holds air inside the tire to maintain proper inflation and traction.

Fitment & Compatibility

Before buying, confirm your tire size is stamped 4.80/4.00-8 on the sidewall—this is a common size for rear mower tires (e.g., John Deere, Craftsman, Husqvarna) and wheelbarrow tires. Measure the tire’s outer diameter (approx. 18-19") and rim diameter (8"). The TR-13 valve stem is straight, about 1.5" long, and fits standard valve stem holes in steel or aluminum rims. Check your tire’s load rating (usually 4-6 ply) to match the tube’s capacity. Not for tubeless tires or rims without a valve stem hole. If your tire says “tubeless type,” this tube may still work but verify clearance inside the tire.

Key Things to Know

• Quality: Inner tubes are typically butyl rubber—decent for the price, but some users report slow leaks at the valve stem base. Inspect the stem grommet for tightness after installation.
• Installation difficulty: Moderate. You’ll need tire irons, a bead breaker, and patience. Avoid pinching the tube between the rim and tire bead—use baby powder inside the tire to reduce friction.
• Common gotcha: The 4.80/4.00-8 size is wider than a standard 4.00-8 tube; it fits both, but a 4.00-8 tube in a 4.80 tire will stretch thin and risk punctures. Stick to the exact size.
• Valve stem length: TR-13 is straight and short—if your rim has a deep offset or you use a valve stem extender, it may not reach. Measure stem hole depth.

Should You Buy It

If you need a budget-friendly, direct replacement for a 4.80/4.00-8 tube on a lawn tractor, wheelbarrow, or small ATV, this is a solid pick—just double-check your tire size and valve stem clearance before ordering. It’s not for heavy-duty commercial use, but fine for residential mowing and light hauling.